EP 2837648 A1 20150218 - PROCESS FOR PREPARING POLYETHER CARBONATE POLYOLS
Title (en)
PROCESS FOR PREPARING POLYETHER CARBONATE POLYOLS
Title (de)
Verfahren zur Herstellung von Polyethercarbonatpolyolen
Title (fr)
Procédé pour la préparation d'un polycarbonate polyol
Publication
Application
Priority
EP 13382327 A 20130812
Abstract (en)
The present invention relates to a process for the preparation of polyether carbonate polyols in the presence of a double metal cyanide catalysts that can be obtained by a process comprising (a) synthesizing a solid double metal cyanide catalyst in the presence of an organic complexing agent and a polyether polyol ligand; and (b) first washing the catalyst obtained in step a) with an aqueous solution comprising 90-100% by weight of water and 0-10% by weight of a polyether polyol ligand, to form a slurry, wherein the aqueous solution does not contain any organic complexing agent other than the polyether polyol ligand.
IPC 8 full level
C08G 65/26 (2006.01); C08G 64/34 (2006.01)
CPC (source: EP RU US)
B01J 27/26 (2013.01 - RU); B01J 37/06 (2013.01 - RU); C08G 64/34 (2013.01 - EP RU US); C08G 65/26 (2013.01 - RU); C08G 65/2603 (2013.01 - EP US); C08G 65/2663 (2013.01 - EP US)
Citation (applicant)
- US 3404109 A 19681001 - JACK MILGROM
- US 3427256 A 19690211 - MILGROM JACK
- US 3427334 A 19690211 - BELNER ROBERT J
- US 3941849 A 19760302 - HEROLD ROBERT JOHNSTON
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Citation (search report)
- [X] EP 2548908 A1 20130123 - BAYER MATERIALSCIENCE AG [DE]
- [X] US 2013123532 A1 20130516 - GUERTLER CHRISTOPH [DE], et al
- [X] EP 2441788 A1 20120418 - BAYER MATERIALSCIENCE AG [DE]
- [AD] WO 2012156431 A1 20121122 - REPSOL SA [ES], et al
- [A] US 2003149232 A1 20030807 - HINZ WERNER [US], et al
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Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2837648 A1 20150218; BR 112016002894 A2 20170801; CA 2921138 A1 20150219; CN 105531299 A 20160427; CN 105531299 B 20171110; EP 3033374 A1 20160622; EP 3033374 B1 20191113; ES 2762553 T3 20200525; JP 2016527385 A 20160908; JP 6328241 B2 20180523; KR 20160042967 A 20160420; MX 2016001853 A 20160803; PT 3033374 T 20200120; RU 2016108497 A 20170919; RU 2659782 C2 20180704; SA 516370566 B1 20191110; US 10385164 B2 20190820; US 2016194441 A1 20160707; WO 2015022290 A1 20150219
DOCDB simple family (application)
EP 13382327 A 20130812; BR 112016002894 A 20140811; CA 2921138 A 20140811; CN 201480050222 A 20140811; EP 14750468 A 20140811; EP 2014067158 W 20140811; ES 14750468 T 20140811; JP 2016533901 A 20140811; KR 20167006178 A 20140811; MX 2016001853 A 20140811; PT 14750468 T 20140811; RU 2016108497 A 20140811; SA 516370566 A 20160211; US 201414911669 A 20140811